STM32 MCUs Boards and hardware tools

After I change option byte on stlink, swd (stlink) is not connected.

Dear all~After I change option byte on stlink, swd (stlink) is not connected.read out protection : level 2 , BOR Level : level 3After not connect. pop up​Let me know how to recover option byte. ​Thanks​

Dear ST staff, I am using the nucleo board STM32L476RG to flash a STM32L476ZGT6. I once wrongly connected the SWD pins. I am now only able to erase the microcontroller flash: I cannot flash the microcontroller again. Do you have a clue?

Note:The hardware is still functional, I made sure of it.

Can I use STLINK V2 to program STM32H743ZI ?

Does STM32H743ZI support programming through STLink v2? In Nucleo-h743zi2 STLink v3 is provided.

IS USART PIN OF STM32F103RDT6 IS 5V COMPATIBLE?

Hi Team,We are using STM32F103RDT6 MCU, for connecting 5V RS485 transceiver to the MCU. We used (PIN no 16,17) USART2(RX-PA3,TX-PA2)and one GPIO (PIN no 15) pins of MCU. Kindly clarify the below points1. From the datasheet,it shows all pins are 5V to...

INot a genuine st device. Abort connection

I use an STM32F7805-DK and a Keil IDE and have been working well for a month. Suddenly, I get Not a Genuine ST Device. I installed Keil on a second computer and bought a 2nd STM32F7805-DK but get the same result. What can I do... the drivers on the P...

Design of ST hardware

I want to design hardware with STM32G071RBT6 micro-controller, i have basic design circuit but i want to build strong power supply with reverse polarity protection and industrial noise free hardware. please provide me solution for Hardware design.

Can I use CAN and USB pin only if USB plugged in?

Hello,I am using STM32F103 for my project and it requires CAN most of the time however if a USB connector is plugged in, it should behave like a virtual COM port. CAN_R and CAN_T pins are connected to PA11 and PA12together with USB_DP and USB_DM pint...

This is a specific question Programming a new IC STM32030 using an ST-Link and STM32CubeProgrammer. I have spent considerable time trying to understand why I cannot connect to my stm32. I have attempted to connect and program through STM32CubeIDE also.

The St_link registers itself and the serial is updated etc. however when I attempt to connect to the newly soldered chip, I get the message that "No STM32 target found".Am I attempting to program this chip incorrectly by using the SWDIO, GND, SWCLK a...

How do I resolve the problem of "Failure loading STLinkUSBDrive.dll" that keep coming up when I click Program Verify

STM32L152RE Schematic Verification

I am trying to create custom PCB for my academic project. This is the first time i am using an STM32 processor. I will be grateful if someone can verify the schematic for STM32L152RE which i created.I will be using SWD to flash code to the STM32. The...